Non-traumatic subarachnoid hemorrhage

摘要: Non-traumatic subarachnoid hemorrhage (SAH) has distinct risk factors, demographics, and treatment from other forms of stroke. Spontaneous SAH, mostly aneurysmal, accounts for about 2–5% all strokes, afflicting 37,500 cases stroke per year in the United States [1]. A cerebral aneurysm is an outpouching brain arteries that eventually ruptures. The incidence non-traumatic aneurysmal SAH remained stable over past 30 years [2]. Although varies region to region, aggregate worldwide 10.5 100,000 person [3, 4]. Women have a 1.6 times (95% confidence interval [CI] 1.5–2.3) higher than men [5] people African descent 2.1 CI 1.3–3.6) whites [6]. major factors include cigarette smoking, hypertension, cocaine use, habitual heavy alcohol intake [7]. Other such as family history first-degree relatives with disease heritable connective-tissue disorders, also play role